vlib: add unsafe{} wrappers to C. fn calls, to allow compiling with -prod again

vlib/json/json_primitives.v

@@ -187,7 +187,7 @@ fn json_parse(s string) &C.cJSON {
 // json_string := json_print(encode_User(user))
 fn json_print(json &C.cJSON) string {
 	s := C.cJSON_PrintUnformatted(json)
-	return tos(s, C.strlen(s))
+	return unsafe { tos(s, C.strlen(s)) }
 }
 
 // /  cjson wrappers

vlib/net/websocket/utils.v

@@ -20,7 +20,7 @@ fn htonl64(payload_len u64) byteptr {
 fn create_masking_key() []byte {
 	mask_bit := byte(rand.intn(255))
 	buf := [`0`].repeat(4)
-	C.memcpy(buf.data, &mask_bit, 4)
+	unsafe { C.memcpy(buf.data, &mask_bit, 4) }
 	return buf
 }
 

vlib/net/websocket/ws.v

@@ -430,7 +430,7 @@ pub fn (mut ws Client) read() int {
 		if payload == 0 {
 			l.f('out of memory')
 		}
-		C.memcpy(payload, &data[header_len], payload_len)
+		unsafe { C.memcpy(payload, &data[header_len], payload_len) }
 		if frame.fin {
 			if ws.fragments.len > 0 {
 				// join fragments
@@ -522,7 +522,7 @@ pub fn (mut ws Client) read() int {
 		mut payload := []byte{}
 		if payload_len > 0 {
 			payload = [`0`].repeat(int(payload_len))
-			C.memcpy(payload.data, &data[header_len], payload_len)
+			unsafe { C.memcpy(payload.data, &data[header_len], payload_len) }
 		}
 		unsafe {
 			free(data)
@@ -601,7 +601,7 @@ fn (mut ws Client) send_control_frame(code OPCode, frame_typ string, payload []b
 	if code == .close {
 		if payload.len > 2 {
 			mut parsed_payload := [`0`].repeat(payload.len + 1)
-			C.memcpy(parsed_payload.data, &payload[0], payload.len)
+			unsafe { C.memcpy(parsed_payload.data, &payload[0], payload.len) }
 			parsed_payload[payload.len] = `\0`
 			for i in 0 .. payload.len {
 				control_frame[6 + i] = (parsed_payload[i] ^ masking_key[i % 4]) & 0xff

vlib/rand/sys/system_rng.c.v

@@ -46,7 +46,7 @@ pub fn (mut r SysRNG) seed(seed_data []u32) {
 		exit(1)
 	}
 	r.seed = seed_data[0]
-	C.srand(int(r.seed))
+	unsafe { C.srand(int(r.seed)) }
 }
 
 // r.default_rand() exposes the default behavior of the system's RNG

vlib/sync/sync_nix.c.v

@@ -114,7 +114,7 @@ pub fn new_semaphore() Semaphore {
 		s := Semaphore{
 			sem: &PosixSemaphore{}
 		}
-		C.sem_init(&&PosixSemaphore(s.sem).sem, 0, 0)
+		unsafe { C.sem_init(&&PosixSemaphore(s.sem).sem, 0, 0) }
 		return s
 	}
 }
@@ -126,7 +126,7 @@ pub fn (s Semaphore) post() {
 		C.pthread_cond_signal(&&MacOSX_Semaphore(s.sem).cond)
 		C.pthread_mutex_unlock(&&MacOSX_Semaphore(s.sem).mtx)
 	} $else {
-		C.sem_post(&&PosixSemaphore(s.sem).sem)
+		unsafe { C.sem_post(&&PosixSemaphore(s.sem).sem) }
 	}
 }
 
@@ -139,7 +139,7 @@ pub fn (s Semaphore) wait() {
 		(&MacOSX_Semaphore(s.sem)).count--
 		C.pthread_mutex_unlock(&&MacOSX_Semaphore(s.sem).mtx)
 	} $else {
-		C.sem_wait(&&PosixSemaphore(s.sem).sem)
+		unsafe { C.sem_wait(&&PosixSemaphore(s.sem).sem) }
 	}
 }
 
@@ -161,7 +161,7 @@ pub fn (s Semaphore) try_wait() bool {
 		C.pthread_mutex_unlock(&&MacOSX_Semaphore(s.sem).mtx)
 		return res
 	} $else {
-		return C.sem_trywait(&&PosixSemaphore(s.sem).sem) == 0
+		return unsafe { C.sem_trywait(&&PosixSemaphore(s.sem).sem) == 0 }
 	}
 }
 
@@ -183,6 +183,6 @@ pub fn (s Semaphore) timed_wait(timeout time.Duration) bool {
 		C.pthread_mutex_unlock(&&MacOSX_Semaphore(s.sem).mtx)
 		return res
 	} $else {
-		return C.sem_timedwait(&&PosixSemaphore(s.sem).sem, &t_spec) == 0
+		return unsafe { C.sem_timedwait(&&PosixSemaphore(s.sem).sem, &t_spec) == 0 }
 	}
 }

vlib/v/tests/cstrings_test.v

@@ -1,8 +1,8 @@
 fn test_cstring() {
 	w := c'world'
-	hlen := C.strlen(c'hello')
-	hlen2 := C.strlen('hello')
-	wlen := C.strlen(w)
+	hlen := unsafe{ C.strlen(c'hello') }
+	hlen2 := unsafe{ C.strlen('hello') }
+	wlen := unsafe{ C.strlen(w) }
 	assert hlen == 5
 	assert hlen2 == 5
 	assert wlen == 5